I wonder how HVSP and the automatic recognition works.
I can’t find a schematic or PCB for the HVSP Adapter in the arcives. There are only some GIF files but the Names on the Pins are other than the Names on the AVR-Doc PCB.
I have a ATtiny85 with disabled Reset. I tryed to find out the connections from the photos and soldered the ATtiny to the AVR-Doc with some wires.
P0 -> XA1
P1 -> XA2
P2 -> BS1
P3 -> RDY
P4 -> PAG
P5 -> +12V
VCC -> +5V
GND -> GND
But the AVR-Doc stays in HVPP mode and doesn’t recognize the ATtiny.
What’s the problem?